The U.S. Environmental Protection Agency has denied a petition seeking to overturn an air operating permit for Humboldt Redwood Company, LLC's sawmill and electric generating facility in Humboldt County, California. The decision leaves the facility's Clean Air Act title V permit in effect, according to the U.S. Environmental Protection Agency.
The petition was submitted on January 1, 2025, by the Environmental Protection Information Center and the Humboldt Coalition for Clean Energy. The groups asked EPA to object to operating permit No. NCU 060-12, which was issued by the North Coast Unified Air Quality Management District for the Humboldt Redwood facility.
EPA issued a final order denying the petition on May 5, 2026. The agency stated that the order explains the basis for its decision to reject the request.
The permit covers operations at a facility that combines lumber manufacturing with electricity generation. The notice does not provide additional details about the petitioners' objections or the grounds for EPA's decision.
Under Sections 307(b) and 505(b)(2) of the Clean Air Act, petitioners may seek judicial review of issues denied by EPA. Any challenge to the order must be filed with the appropriate U.S. Court of Appeals by August 24, 2026.